Finite-time and bumpless transfer control of asynchronously switched systems: An output feedback control approach

TL;DR

This paper develops an output feedback control method for asynchronously switched systems that ensures finite-time stability and smooth control transfer, validated through a boost converter application.

Contribution

It introduces a novel control design combining finite-time and bumpless transfer control for asynchronously switched systems with measurable outputs.

Findings

Successfully stabilizes switched systems in finite time.

Ensures smooth control transitions with a practical filter.

Validated effectiveness through a boost converter example.

Abstract

In this paper, the finite-time control and bumpless transfer control are investigated for switched systems under asynchronously switching. First, a class of dynamic output feedback controllers are designed to stabilize the switched system with measurable system outputs. Considering the improvement of transient performance, the bumpless transfer control and finite-time control are further studied in the controller design. To avoid the control bumps, a practical filter is introduced to make the control signal smoother and continuous. Furthermore, to derive a finite-time bounded system state over short-time intervals, the finite-time analysis is considered in managing the switching process with the average dwell time. New criteria are proposed to analyze the finite-time stability and finite-time boundedness for the closed-loop system and solvable conditions are newly proposed to optimize the controller gain. Finally, the superiorities of the proposed method are validated through an application to a boost converter.